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Creating Linked List

deshdeep divakar
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Joined: Apr 19, 2004
Posts: 91
Hi,
Can anybody tell me how can I implement Linked List without
using util class


"Do not be afraid of going slow, be afraid of standing still"
Barry Gaunt
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Joined: Aug 03, 2002
Posts: 7729
Sorry this is not in the scope of SCJP so it's now here.
[ November 02, 2004: Message edited by: Barry Gaunt ]

Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch
Getting someone to think and try something out is much more useful than just telling them the answer.
Stan James
(instanceof Sidekick)
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Joined: Jan 29, 2003
Posts: 8791
A singly linked list has a pointer from each element to the next. Let's make a Node class that holds a pointer to the next Node and some object that you put there:

We could build a list like this (just typing, not compiling or testing!)

When I first started making these things, I had to draw each new node on a piece of paper and draw arrows for the "next" pointers. After a while it made sense.

For more fun, think about removing a node in the middle, or the first node. If you really think that was fun, come back and we'll talk about doubly linked lists!


A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Creating Linked List